[ticket/12120] Add prototech to authors

PHPBB3-12120
[ticket/12120] Restore alphabetic order

PHPBB3-12120
Merge remote-tracking branch 'nickvergessen/ticket/12120' into develop-olympus
Merge branch 'develop-olympus' into develop
[ticket/12125] Specify nth-child selectors separately - IE8 does not like them

PHPBB3-12125
Merge remote-tracking branch 'prototech/ticket/12125' into develop

* prototech/ticket/12125:
  [ticket/12125] Specify nth-child selectors separately - IE8 does not like them